How old were they?

Erskine Mayer

P · Born January 16, 1890

Age in each postseason series

1. 1915 World Series (October 8, 1915), Phillies vs Red Sox 1–4: 25 years, 265 days
2. 1919 World Series (October 1, 1919), White Sox vs Reds 3–5: 29 years, 258 days

Age in each season

1. 1912 (Phillies): 22 years, 76 days to 22 years, 259 days
2. 1913 (Phillies): 23 years, 75 days to 23 years, 258 days
3. 1914 (Phillies): 24 years, 75 days to 24 years, 258 days
4. 1915 (Phillies): 25 years, 75 days to 25 years, 258 days
5. 1916 (Phillies): 26 years, 76 days to 26 years, 259 days
6. 1917 (Phillies): 27 years, 75 days to 27 years, 258 days
7. 1918 (Pirates, Phillies): 28 years, 75 days to 28 years, 258 days
8. 1919 (Pirates, White Sox): 29 years, 75 days to 29 years, 258 days